Log-hauling device



(NO Model.) 3 Sheets-Shea 1.

i A. VAN DUZER & W. KIRRY.

LOG HAULING DEVICE.

Patented Aug. 27, 1895.

3 Sheets-Sheet 2.

I (No Model.)

A. VAN DUZER 8: W. KIRRY.

LOG HAULING DEVICE.

No. 545.319. Patented Aug. 27, 1895.

(No Model.) 3 Sheets-Sheet 3. A! VAN DUZER & W. KIRRY.

LOG HAULING DEVICE.

No. 545,319. Patented Aug. 27,1895.

7? f %1 TM" W W/TNESSES. I 773 /NVENTOH5 A TTORNE Y8.

UNITED STATES PATENT Onrrcn.

ALBERT VAN DUZER AND WALTER KIRRY, OF SCOTIA, CALIFORNIA.

LOG-HAULING DEVICE.

$PECIFICATION forming part of Letters Patent No. 545,319, dated August27, 1895.

Application filed April 26, 1894. Serial No. 509,104. (No model.)

To all whom it may concern.-

Be it known that we, ALBERT VAN DUZER and \VALTER KIRRY, of Scotia, inthe county of Humboldt and State of California, haveinvented certain newand useful Improvements in Log-Hauling Devices, of which the followingis a full, clear, and exact description.

Our invention relates to improvements in log-hauling devices, andparticularly to such devices as are used in connection with cablesactuated by Bull donkey engines and adapted for use in a hilly region.In devices of this kind the cable frequently gets under the logs, owingto the fact that the logs slide rapidly down steep grades and are likelyto turn, and as a result the cable gets badly twisted and soon wearsout, while the logs are not handled as rapidly as is desirable.

The object of our invention is to overcome these difticulties byproducing simple attachments for a hauling-cable which may beconveniently applied to the cable and to the log to be hauled, which areadapted to release and permit the logs to slide freely down a steepgrade, and which are held in such a way that the cable cannot getbeneath the log, but

- is always in position to do the most effective work.

To these ends our invention consists of oer-- plied to a log to behauled, and shows the arrangement of our improved devices with relationto the log and cable. Fig. 2 is a detail side elevation, partly insection, of the main draft-hook and its connection'with the cable. Fig.3 is a plan view of the hook and cable connections. Fig. 1 is across-section on the line 4 def Fig. 2. Fig. 5is aplan view of thesheave-housing which is applied to the hook. Fig. 6 is a longitudinalsection on the line 6 6 of Fig. 5. Fig. 7 is a plan view of amodifiedform of. sheave-carrying and cable-guiding device which may besubstituted for the hook shown in Figs. 2 and 3. Fig. 8 is a sideelevation of the construction shown in Fig.7. Fig. 9 is a broken sideelevation, partly in section, of a modification of the invention,in

which the draft-hook is provided with a wheelactuated grip to engage thecable. Fig. 1O is which may be used instead of the wheel-grip shown inFigs. 9 and 10, and Fig. 14. is a crosssection on the line 14 14: ofFig. 13.

The cable 10 is used in the ordinary waythat is, is actuated by anengineto draw a string of logs which may be arranged end to end, and themain cable 10 connects by means of a swivel 11 and clevis 12 with thesmaller cable 13, which is adapted to carry devices like that describedbelow for connecting with another log. The cable 10 carries a drafthook14, (see Fig. 2,) which is adapted to be driven into the top of a log,as shownin Fig. 1, and on the shank of the hook is 2. lug 15, which isadapted tovtit between the flanges 16 on the under side of thesheave-housing l7, and the housing is held in place on the hook by abolt 16*, which projects through the flanges l6 and through the lug 15.

In the housing 17 is a pair of sheave-pulleys 18, which are adapted toclamp and guide the cable 10, and these pulleys are journaled on bolts19, which extend vertically through the housing and have eccentrics 20,forming the journals of the sheave-pulleys, so that by turning the boltsthe pulleys may be made to tightly clamp the cable or they maybeseparated so as to release the cable. By removing the hook the cable canbe separated from.

they may be turned, as specified, and the wrench may be left on the twobolts, as shown in Figs. 5 and 6, to prevent the bolts from turning anddisarranging the sheave-pulleys. 5

port 43.

pulls along the log to which the hook is attached. Just in front of thehead log is arranged a guide-pulley 22, which runs on the cable 10 andfrom which depends a chain 23, which is secured to the bridle 24, thisbridle extending transversely across the end of the log near the bottom,as shown in Fig. 1, and it has dogs at the ends which are driven firmlyinto the sides of the log, and thus the draft comes upon three pointstowit, the two dogs 25 and the draft-hook 14and as the dogs are arrangedbelow the center of the log the log is held steady and is prevented fromturning. The cable 13' runs between pulleys 26, which are fastened tothe rear end of the log by means of staples 27, on which the pulleys arejournaled, and these devices may be secured to every three or four logs,so as to serve as guides for the cable. The pulleys 26 are far enoughapart to permit the swivel l1 and clevis 12 to run between them in casethe log slides down hill faster thanthe cable is moving. Instead ofusing adraft-hook 14 aplate 28 may be used, as shown in Figs. 7 and 8,this plate having a lug 29 thereon corresponding to the lug 15 of thehook and to which lug the housing 17 may be attached, as alreadyspecified. To the ends of the plate 28 are secured chains 30, whichterminate in branch chains 31, having terminal dogs 32, and these branchchains may be made tostraddle the log in front of and behind the plate28, and when the dogs are driven into the log the plate is held securelyin place. In practice the log is preferably spotted where the hook orplate is attached.

In Figs. 9 and 10 we have shown a modified form of draft-hook andgripping device, the gripper being adapted to engage automatically whenthe cable is pulled and to disengage when the log slides faster than thecable. As here shown, the hook 14 has upwardly-extending lugs 33 on itssides, which receive the bolt 34, by which the gripping-jaw 35 is heldin place, the back of the hook serving as a jaw and the cable being heldbetween the hook and the jaw 35. The lugs 33 also serve to guide the jaw35, and the jaw is guided at its opposite end by lugs 36 on the hook. Onthe jaw are lugs 37, between which is pivoted a pawl 38, which ispressed by a spring .39 into engagement with the teeth 40 on the flangesof the wheel 41, which wheel has an axle 42, journaled in supports 43and 44, the former being fastened rigidly to the hook and the latterbeing secured to the sup- The part 44 of the support serves as a housingfor the wheel 41, and the two parts 43 and 44 have lugs 45 adapted tolie side by side and receive the bolts 40, by which the parts of thesupport are held together. The cable 10 extends through the grip and isgiven a turn around the wheel 41, as shown in Fig. 10, and when anystrain is applied to the cable, the wheel is turned and the teeth 40striking the pawl 38, force the jaw 35 firmly upon the cable 10, thusbinding the hook to the cable but if the log slides faster than thecable the grip slips freely over the cable.

In Figs. 11 and 12 we have shown a handgrip which may be applied to thecable at any desired point and is adapted for use in assembling logs andarranging them in a train. This hand-grip has oppositelyarranged jaws47, which grip the cable, and the jaws are carried by tongs 48, whichhave their longer ends connected by links 49 with a chain 50, which maybe provided with an ordinary hook or dog to engage a log. The chain 50may be made fast to a log and then the jaws 47 may be clamped by hand tothe cable, and as soon as any strain is applied to them the tension onthe chain 50 causes the tongs to firmly press the jaws against thecable, and thus the log is drawn along.

In Figs. 13 and 14 we have shown another modification of a device to beattached to the log and grip the cable, this arrangement having atoggle-grip. As here illustrated, a plate 51 is provided with dependinglugs 52 to straddle the hook 14, to which they are pivoted by bolts 53,and on the plate are gripping-jaws 55, which are adapted to grasp thecable 10, these jaws moving beneath guidebars 56, which are secured tothe raised end portions 54 of the plate. On opposite sides of the jaws55 are the toggles 57, which are pivoted beneath the guide-bars andpressed normally out of engagement with the jaws by springs 58. Thesetoggles are adapted to engage projections 57 on the jaws, and when thecable moves faster than the log'the tog gles strike the projections 57and force the jaws firmly against the cable, so as to cause the log tobe hauled thereby.

' We have shown a variety of ways of connecting the log with the cableso as to permit the log to slide freely down a steep grade or to beautomatically engaged and drawn by the cable, and we do not limitourselves to the construction shown.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent- 1. The combination with a cable, of a hook forengaging a log, and a grip carried by the ICC IIC

hook for engaging the cable, said grip automati'cally gripping the cablewhen the cable moves faster than the log, and releasing the same whenthe log moves faster than the cable, substantially as described.

2. The combination, with the hook, of the plate fastened thereon, themovable jaws slidably secured to the plate, and the toggles pivoted onthe plate to engage the jaws, substantially as described.

3. The combination with a hook, of jaws carried by the hook and providedwith projeotions,and spring pressed and pivoted tog-- gagement with thejaws, substantially as degles adapted to engage dthe projections of thescribed. jaws, substantially as eserihed. T

4;1he combination with a. hook, of a plate 5 to which the hook ispivoted, jaws carried by r the said plate, togglespivoted on the plateWitnesses: and adapted to engage the jaws, and springs GEORGE C.DOUGLAS, engaging the toggles to hold them out of en- T. DWIGHT FELT,Jr.

